Thesaurus

insidious

adjective

Synonyms & Antonyms of insidious

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Time Traveler for insidious

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The first known use of insidious was in 1545

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Cite this Entry

“Insidious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insidious. Accessed 22 Jun. 2021.

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More from Merriam-Webster on insidious

Dictionary: Definition of insidious

Medical Dictionary: Definition of insidious

Nglish: Translation of insidious for Spanish Speakers

Britannica English: Translation of insidious for Arabic Speakers

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